Shut down the Dell D600 and unplug the AC adapter. Turn the computer over, slide the battery release latch towards the outside edge of the computer and lift the battery out.
Remove the screw along the right side of the computer, open the display approximately a half-inch (while still upside down) and slide the hard drive out of the system.
Remove the screw on the memory module cover on the bottom of the laptop and lift the cover off. Press the white tabs around the installed memory modules outward and extract the memory.
Turn the computer over and open the display. Pry the edge of the center control cover up using a plastic scribe and remove it. The center control cover is located directly above the keyboard.
Remove the two screws at the top of the keyboard and lift the top of the keyboard up. Slide the keyboard towards the display to unlock the tabs at the bottom, then disconnect the ribbon cable below the keyboard. Remove the keyboard and set it aside.
Open the display a full 180 degrees. Remove the screw that connects the display cable to the computer, located below the center control cover. Disconnect the cable.
Remove the three hinge screws that secure the display (two on the left hinge and one on the right). Rotate the display approximately 90 degrees and lift it directly off the laptop. Set the display aside.
Remove the three screws labeled "Circle P" below the center control cover. Disconnect the touch pad connector from the system board. The touch pad connector is directly above the touch pad, beneath the keyboard.
Turn the laptop over and remove the nine screws on the bottom of the laptop (eight screws along the edge and one in the center). Pry the top cover and bottom cover apart with your fingers. Separate the two covers and remove the top cover. You now have access to the system board.
Hold a soldering iron in one hand and a desoldering pump in the other hand.
Heat up the soldered joints where the power jack connects to the motherboard using the tip of the soldering iron, until the solder melts. Quickly move the tip of the desoldering pump near the molten solder and press the actuator button on the desoldering pump to suck up the melted solder. The power jack is along the back edge of the board. Repeat this step, removing as much solder as possible.
Grasp the power jack with a pair of needle nosed pliers and continue heating up the soldered joints. Gently tug at the power jack with the needle nosed pliers until you can remove it from the system board. Dispose of the old power jack.
Clean the area on the system board where the power jack fits with isopropyl alcohol and a toothbrush, removing any impurities on the system board. Brush gently so you don't damage the board. Allow the alcohol to dry completely.
Insert the pins from the new power jack into the appropriate points in the system board. Apply solder to each pin on the motherboard until the power jack is secure.
Reassemble the D600 following the disassembly instructions in reverse.
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